Which of the following secondary sex characteristics do not develop during the teen years? a.) development of breasts in girls b.) development of body hair in boys c.) development of ovaries in girls and testes in boys d.) development of acne in boys

Ectocarpene is a volatile, sperm cell-attracting material released by the eggs of the seaweed ectocarpus siliculosus. its constitution is all the double bonds are cis, and the absolute configuration of the chirality center is s. draw a stereochemically accurate representation of ectocarpene.

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.